Answer:
50 7th grade and 40 8th grade
Step-by-step explanation:
1. add to get total number of students, 1440
2. find percentage of total that are 7th grade students and 8th grade student:
640/1440 = ~45% (are 7th grade)
800/1440 = ~55% (are 8th grade)
3. 55% of 90 is 50, and 45% of 90 is 40
Exact Form: x = 7/2
Decimal Form: x = 3.5
Mixed Number Form: 3 1/2
Brainliest Please! Hermionia out!
Each child received two pieces.
So total pieces received by 4 children = 4*2 = 8
Total pieces = 10 + 8 = 18
47.25 + 23.75 = 71
Answer: 9 is the value of "x".
